def encode(self):
''' Encodes response pdu
:returns: The encoded packet message
'''
result = pack_bitstring(self.bits)
packet = struct.pack(">B", len(result)) + result
return packet
def execute(self, *args):
''' Execute the diagnostic request on the given device
:returns: The initialized response message
'''
#if _MCB.isListenOnly():
register = pack_bitstring(_MCB.getDiagnosticRegister())
return ReturnDiagnosticRegisterResponse(register)
def execute(self, *args):
''' Execute the diagnostic request on the given device
:returns: The initialized response message
'''
#if _MCB.isListenOnly():
register = pack_bitstring(_MCB.getDiagnosticRegister())
return ReturnDiagnosticRegisterResponse(register)
def encode(self):
''' Encodes response pdu
:returns: The encoded packet message
'''
result = pack_bitstring(self.bits)
packet = struct.pack(">B", len(result)) + result
return packet
def encode(self):
''' Encodes the status bits to an event message
:returns: The encoded event message
'''
bits = [False] * 3
bits += [self.overrun, self.listen, self.broadcast, True]
packet = pack_bitstring(bits)
return packet
def encode(self):
''' Encodes the status bits to an event message
:returns: The encoded event message
'''
bits = [False] * 3
bits += [self.overrun, self.listen, self.broadcast, True]
packet = pack_bitstring(bits)
return packet
def encode(self):
''' Encodes write coils request
:returns: The byte encoded message
'''
count = len(self.values)
self.byte_count = (count + 7) / 8
packet = struct.pack('>HHB', self.address, count, self.byte_count)
packet += pack_bitstring(self.values)
return packet
def encode(self):
''' Encodes write coils request
:returns: The byte encoded message
'''
count = len(self.values)
self.byte_count = (count + 7) / 8
packet = struct.pack('>HHB', self.address, count, self.byte_count)
packet += pack_bitstring(self.values)
return packet
def encode(self):
''' Encodes the status bits to an event message
:returns: The encoded event message
'''
bits = [self.read, self.slave_abort, self.slave_busy,
self.slave_nak, self.write_timeout, self.listen]
bits += [True, False]
packet = pack_bitstring(bits)
return packet
def add_bits(self, values):
''' Adds a collection of bits to be encoded
If these are less than a multiple of eight,
they will be left padded with 0 bits to make
it so.
:param value: The value to add to the buffer
'''
value = pack_bitstring(values)
self._payload.append(value)
def add_bits(self, values):
''' Adds a collection of bits to be encoded
If these are less than a multiple of eight,
they will be left padded with 0 bits to make
it so.
:param value: The value to add to the buffer
'''
value = pack_bitstring(values)
self._payload.append(value)
def encode(self):
''' Encodes the status bits to an event message
:returns: The encoded event message
'''
bits = [
self.read, self.slave_abort, self.slave_busy, self.slave_nak,
self.write_timeout, self.listen
]
bits += [True, False]
packet = pack_bitstring(bits)
return packet
def fromCoils(klass, coils, endian=Endian.Little):
''' Initialize a payload decoder with the result of
reading a collection of coils from a modbus device.
The coils are treated as a list of bit(boolean) values.
:param coils: The coil results to initialize with
:param endian: The endianess of the payload
:returns: An initialized PayloadDecoder
'''
if isinstance(coils, list):
payload = pack_bitstring(coils)
return klass(payload, endian)
raise ParameterException('Invalid collection of coils supplied')
def fromCoils(klass, coils, endian=Endian.Little):
''' Initialize a payload decoder with the result of
reading a collection of coils from a modbus device.
The coils are treated as a list of bit(boolean) values.
:param coils: The coil results to initialize with
:param endian: The endianess of the payload
:returns: An initialized PayloadDecoder
'''
if isinstance(coils, list):
payload = pack_bitstring(coils)
return klass(payload, endian)
raise ParameterException('Invalid collection of coils supplied')